Dr. Oualid Hammi | American University of Sharjah
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Profile

College / Department

College of Engineering
Department of Electrical Engineering

Teaching areas

Electric circuits, Electronics, Radiofrequency (RF) circuits and systems, Microwave techniques, RF and Microwave instrumentation and measurements, Satellite communications, Engineering design.

Research areas

Wireless transceivers design, 5G RF circuits and systems, power amplifiers design, characterization and linearization, digital predistortion techniques, satellite transmitters, impairments compensation for wireless and satellite systems.

Education

PhD, Electrical Engineering, University of Calgary, Canada, 2009
MS, Electrical Engineering, Ecole Polytechnique Montreal, Canada, 2004
BS, Electrical Engineering, Ecole Nationale d'Ingenieurs de Tunis, Tunisia, 2001

Professional experience

Professor, Electrical Engineering, American University of Sharjah, United Arab Emirates, 2020 - Present
Adjunct Professor, Electrical And Computer Engineering Department, University of Calgary, AB, Canada, 2015 - Present
Interim Department Head, Electrical Engineering Department, American University of Sharjah, United Arab Emirates, 2021 - 2022
Associate Professor, Electrical Engineering Department, American University of Sharjah, United Arab Emirates, 2015 - 2020
Associate Professor, Electrical Engineering Department, King Fahd University of petroleum and Mineral, Saudi Arabia, 2014 - 2015
Assistant Professor, Electrical Engineering Department, King Fahd University of petroleum and Mineral, Saudi Arabia, 2010 - 2014
Post-doctoral Fellow, Iradio Laboratory, Electrical And Computer Engineering Department, University of Calgary, AB, Canada, 2009 - 2010

Memberships

IEEE, January 2009

Contact

[email protected]
+971 6 515 2971

Dr. Oualid Hammi

Professor
PhD, University of Calgary, Canada

Since 2015, Oualid Hammi has been an associate professor of electrical engineering at the American University of Sharjah, Sharjah, UAE. He has also been an adjunct associate professor with the Electrical and Computer Engineering Department, Schulich School of Engineering, University of Calgary, Canada, since 2015. From 2010 to 2015, he was a faculty member with the Department of Electrical Engineering, at King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia. Dr. Hammi co-authored two books, one Encyclopedia chapter, and over 100 technical papers. He holds 13 US patents, and is regular reviewer for several IEEE journals. Dr. Hammi won the College of Engineering Research Excellent Award at AUS in 2019.

Publications

Serien Ahmed, Majid Ahmed, Souheil Bensmida And Oualid Hammi. Power amplifier predistortion using reduced sampling rates in the forward and feedback paths, Sensors, May 2024
Mostafa Abdelnaby, Reem Alnajjar And Oualid Hammi. Reduced complexity sequential digital predistortion technique, Smart Cities, April (2nd Quarter/Spring) 2024
Majid Ahmed, Ahmed Dalbah, Oualid Hammi And Fadhel Ghannouchi. Neural networks based behavioral modeling of dual-band RF power amplifiers using Augmented BiLSTM structures, February 2024
Asma Ali And Oualid Hammi. Bandwidth, power and carrier configuration resilient neural networks digital predistorter, Ieee Access, June 2023
Majid Ahmed, Oualid Hammi And Amer Zakaria. A Low-Cost Portable and Agile Amateur Satellites Ground-Station, 2023 Ieee 9th International Conference On Smart Instrumentation, Measurement And Applications (icsima), 17 October (4th Quarter/Autumn) 2023
Asma Ali, Majid Ahmed And Oualid Hammi. BiLSTM neural network DPD with reduced feedback sampling rate, August 2023
Serien Ahmed And Oualid Hammi. On the use of undersampled signals for power amplifiers linearization using digital predistortion, 20th Ieee International Multi-conference On Systems, Signals, And Devices, February 2023
Anfal Alsayed Ali, Serien Ahmed And Oualid Hammi. Hybrid predistorter for broadband power amplifiers linearization with relaxed DAC speed in the signal transmit path, Ieee Access, November 2022
Asma Ali, Majid Ahmed And Oualid Hammi. BiLSTM neural network DPD with reduced feedback sampling rate, 2023 Ieee Symposium On Wireless Technology And Applications
Yahya , Oualid Hammi, Lutfi Albasha And Hasan Mir. Behavioral Modeling of GaN Doherty Power Amplifiers Using Memoryless Polar Domain Functions and Deep Neural Networks, Ieee Access
Ahmad Dalbah, Oualid Hammi And Azzeddine Zerguine. Hybrid look-up tables based behavioural model for dynamic nonlinear power amplifiers, Ieee Access, 14 February 2020
Ahmad Dalbah And Oualid Hammi. Enhanced training technique for nested look-up table based behavioural modelling of nonlinear power amplifiers, 3rd International Conference On Communications, Signal Processing And Their Applications (iccspa’2019), March 2019
Mostafa Abdelnaby And Oualid Hammi. Comparative analysis of single-box and two-box RF power amplifiers’ behavioral models sensitivity to delay misliagnment, 4th International Conference On Electrical, Electronics And Systems Engineering (iceese 2018), November 2018
Mohammad Sharawi And Oualid Hammi. Design and Application of Active Integrated Antennas, 31 May 2018
Oualid Hammi, Ibrahim Abdullateef And Souheil Bensmida. Agile broadband behavioral modelling of nonlinear power amplifiers using coarse-predistortion technique, 2nd International Conference On Signals And Systems (icsigsys 2018), May 2018
Moahmed Abu Rahma, Oualid Hammi And Lutfi Albasha. Adaptive shaping function for envelope tracking applications, 2018 Uae Graduate Students Research Conference, April (2nd Quarter/Spring) 2018
Mostafa Abdelnaby And Oualid Hammi. Behavioral modelling of RF power amplifiers using reduced sampling rate, 2018 Uae Graduate Students Research Conference, April (2nd Quarter/Spring) 2018
Aaesha Alzaabi, Lama El Chaar, Mohamad Daher, Mohamed Khalaf, Oualid Hammi And Lutfi Albasha. Enhanced identification technique for dynamic nonlinear power amplifiers modeling using twin-nonlinear two-box structures, 2017
Ibrahim Abdulateef, Lutfi Albasha, Hasan Mir And Oualid Hammi. Weighted PLUME digital predistorter model with a reduced-complexity identification algorithm, 2017 Ieee Symposium On Computer Applications & Industrial Electronics (iscaie), 2017
Lutfi Albasha And Oualid Hammi. Introducing industrial design flow of an RFIC chip to a graduate course: building the ecosystem and bridging the gap between industry and academia, Iet Circuits, Devices \& Systems, 2017
Andrew Kwan, Mayada Younes, Oualid Hammi, Mohamed Helaoui, Noureddine Boulejfen And Fadhel Ghannouchi. Selective intermodulation compensation in a multi-stage digital predistorter for nonlinear multi-band power amplifiers, Ieee J. Emerg. Sel. Topics Circuits Syst. – Special Issue On Advanced Baseband Processing Circuits And Systems For 5g Communications, 1 December 2017
Peter Bagot, Souheil Bensmida And Oualid Hammi. Experimental testbed for PA characterization and pre-distortion with relaxed sampling rate requirements, Ieee 89th Arftg Microwave Measurement Conference (arftg2016), June 2017
Andrew Kwan, Mayada Younes, Oualid Hammi, Mohamed Helaoui And Fadhel Ghannouchi. Linearization of a highly nonlinear envelope tracking power amplifier targeting maximum efficiency, Ieee Microwave And Wireless Components Letters, 1 January (1st Quarter/Winter) 2017
Abubaker Abdelhafiz, Oualid Hammi, Azzedine Zerguine And Fadhel Ghannouchi. Comparative analysis of power amplifiers' polynomial based models identification using RLS algorithm, 5th International Conference On Electronic Devices, Systems And Applications (icedsa 2016), December 2016
Oualid Hammi And Mohammed Khalifa. System level oriented load-pull based design of envelope tracking power amplifiers for LTE applications, Ieee Mediterranean Microwave Symposium (mms 2016), November 2016
Mohamad Ikram, Riffakat Hussein, Oualid Hammi And Mohammad Sharawi. An L-shaped 4-element monopole antenna system with enhanced isolation for mobile applications, Microwave And Optical Technology Letters, 1 November 2016
Abubaker Abdelhafiz, Andrew Kwan, Mayada Younes, Oualid Hammi, Noureddine Boulejfen And Fadhel Ghannouchi. Augmented dual-band digital predistorter for reducing cross-band intermodulation distortion using predictive injection technique, Ieee Transactions On Microwave Theory And Techniques, 1 November 2016
Souheil Bensmida, Oualid Hammi, Andrew Kwan, Mohammad Sharawi, Kevin Morris And Fadhel Ghannouchi. Extending the characterization bandwidth of dynamic nonlinear transmitters with application to digital predistortion, Ieee Transactions On Microwave Theory And Techniques, 1 August 2016
Andrew Kwan, Mayada Younes, Oualid Hammi, Abubaker Abdelhafiz, Fadhel Ghannouchi And Abraham Fapojuwo. A multi-stage concurrent dual-band DPD architecture for closely spaced carriers using a low bandwidth feedback loop, Ieee International Microwave Symposium (ims 2016), May 2016
Oualid Hammi, Mohammed Khalifa, Abubakr Abdelhafiz, Andrew Kwan, Azzedine Zerguine, Mohammad Sharawi And Fadhel Ghannouchi. A dual-input two-box model for behavioral modeling and predistortion of envelope tracking power amplifiers, Ieee Microwave And Wireless Components Letters, 1 May 2016
Abubaker Abdelhafiz, Lelah Behjat, Fadhel Ghannouchi, Mohamed Helaoui And Oualid Hammi. A high-performance complexity reduced behavioural model and digital predistorter for MIMO systems with crosstalk, Ieee Transactions On Communications, 1 May 2016
Mohammad Sharawi, Sagar Dhar, Oualid Hammi And Fadhel Ghannouchi. Miniaturized active integrated antennas: A co-design approach, Iet Microwaves Antennas And Propagation, 1 May 2016
Sagar Dhar, Mohammad Sharawi, Oualid Hammi And Fadhel Ghannouchi. An active integrated ultra-wideband MIMO antenna, Ieee Transactions On Antennas And Propagation, 1 April (2nd Quarter/Spring) 2016
Oualid Hammi, Abdullah Abdelrahman And Azzedine Zerguine. Multi-basis weighted memory polynomial for RF power amplifiers behavioral modeling, Ieee International Wireless Symposium (iws 2016), March 2016
Abdullah Abdel-rahman, Oualid Hammi, Andrew Kwan, Azzedine Zerguine And Fadhel Ghannouchi. A novel weighted memory polynomial for behavioral modeling and digital predistortion of nonlinear wireless transmitters, Ieee Transactions On Industrial Electronics, 1 March 2016
Oualid Hammi, Mohammad Khan, Abubakr Abdelhafiz, Fadhel Ghannouchi And Mohammad Sharawi. Complexity reduced behavioral modeling of dynamic nonlinear power amplifiers using two-box structures, Microwave And Optical Technology Letters, 1 March 2016
Oualid Hammi, Abubakr Abdelhafiz, Tareq Al-naffouri And Fadhel Ghannouchi. On the use of compressed sampling algorithms for impairments compensation in dynamic nonlinear transmitters, 15th Ieee International Symposium On Signal Processing On Signal Processing And Information Technology (isspit 2015), December 2015
Oualid Hammi And Abderezak Miftah. Complexity-aware-NMSE "CAN" metric for dimension estimation of memory polynomial based power amplifiers behavioral models, Iet Communications, 1 December 2015
Oualid Hammi. Efficient linear amplification using digitally predistorted overdriven power amplifiers, Ieee Transactions On Broadcasting, 1 September 2015
Saif Najmeddine And Oualid Hammi. Novel single-input single-output two-box polar behavioral model for envelope tracking power amplifiers, Ieee 58th International Midwest Symposium On Circuits And Systems (mwscas 2015), August 2015
Ali Alreshaid, Oualid Hammi, Mohammad Sharawi And Kamal Sarabandi. A compact millimeter wave slot antenna array for 5G standards, 2015 Ieee 4th Asia-pacific Conference On Antennas And Propagation(apcap 2015, July (3rd Quarter/Summer) 2015
Mohamed Hussain, Oualid Hammi, Mohammad Sharawi, Symon Podilchak And Yahia Antar. A dielectric resonator based millimeter-wave MIMO antenna array for hand-held devices, 2015 Ieee Ap-s Symposium On Antennas And Propagation (aps 2015), July (3rd Quarter/Summer) 2015
Ali Alreshaid, Oualid Hammi, Mohammad Sharawi And Kamal Sarabandi. A millimeter wave switched beam planar antenna array, 2015 Ieee Ap-s Symposium On Antennas And Propagation (aps 2015), July (3rd Quarter/Summer) 2015
Fadhel Ghannouchi, Oualid Hammi And Mohamed Helaoui. Behavioral Modeling and Predistortion of Wideband Wireless Transmitters, 1 July (3rd Quarter/Summer) 2015
Moahmed Hanzala, Mohammad Sharawi And Oualid Hammi. Accurate estimation of memory polynomial model dimension for dynamic nonlinear RF power amplifiers, 10th Ieee Conference On Industrial Electronics And Applications (iciea 2015), June 2015
Abubaker Abdelhafiz, Oualid Hammi And Fadhel Ghannouchi. A lattice-based memory polynomial behavioral model for nonlinear MIMO transmitters using fixed point arithmetic, Ieee International Microwave Symposium (ims 2015), May 2015
Abubaker Abdelhafiz, Mayada Younes, Andrew Kwan, Oualid Hammi, Fadhel Ghannouchi And Noureddine Boulejfen. A comparative study of wideband and dual-band digital predistortion architectures, Ieee International Wireless Symposium (iws 2015), April (2nd Quarter/Spring) 2015
Mohammed Khalifa, Abubakr Abdelhafiz, Andrew Kwan, Fadhel Ghannouchi And Oualid Hammi. Behavioral modeling of envelope tracking power amplifier using Volterra series model and compressed sampling, Ieee International Wireless Symposium (iws 2015), April (2nd Quarter/Spring) 2015
Sagar Dhar, Oualid Hammi, Mohammad Sharawi And Fadhel Ghannouchi. Power amplifier based integrated and miniaturized active antenna, 9th European Conference On Antennas And Propagation (eucap 2015), April (2nd Quarter/Spring) 2015
Anton Seregin, Oualid Hammi, Donglin Wang, Mohamed Helaoui And Fadhel Ghannouchi. Modified linear prediction algorithm for narrow band interference suppression in Universal Mobile Telecommunication System, Wireless Communications And Mobile Computing, 1 January (1st Quarter/Winter) 2015
Oualid Hammi, Andrew Kwan, Souheil Bensmida, Kevin Morris And Fadhel Ghannouchi. A digital predistortion system with extended correction bandwidth with application to LTE-A nonlinear power amplifiers, Ieee Transactions On Circuits And Systems Part 1: Regular Papers, 1 December 2014
Andrew Kwan, Mayada Younes, Fadhel Ghannouchi, S. Zhang, Wenhua Chen, Ramzi Darraji, Mohamed Helaoui And Oualid Hammi. Concurrent multi-band envelope modulated power amplifier linearized using extended phase-aligned DPD, Ieee Transactions On Microwave Theory And Techniques, 1 December 2014
Abubaker Abdelhafiz, Azzedine Zerguine, Oualid Hammi And Fadhel Ghannouchi. A lattice-based memory polynomial predistorter for wideband RF power amplifiers, Iet Communications, 1 November 2014
Abubaker Abdelhafiz, Andrew Kwan, Oualid Hammi And Fadhel Ghannouchi. Digital predistortion of LTE-A power amplifiers using compressed sampling based unstructured pruning of Volterra series, Ieee Transactions On Microwave Theory And Techniques, 1 November 2014
Fadhel Ghannouchi, Oualid Hammi, Mohamed Helaoui And J. Webster. Digital Predistortion for Microwave Transmitters, September 2014
Azzedine Zerguine, Oualid Hammi, Abubakr Abdelhafiz And Fadhel Ghannouchi. A predistorter based on the least-mean squares Newton algorithm, 2014 International Symposium On Nonlinear Theory And Its Applications (nolta 14), September 2014
Oualid Hammi. Asymmetry index for memory effects quantification in wireless transmitters and power amplifiers driven by broadband modulated signals, Arabian Journal For Science And Engineering. Section B: Engineering, 1 April (2nd Quarter/Spring) 2014
Damilola Owodunni, Anum Ali, Ahmed Quadeer, Ebrahim Al-safadi, Oualid Hammi And Tariq Al-naffouri. Compressed sensing techniques for receiver based post-compensation of transmitter's nonlinear distortions in OFDM systems, Signal Processing, 1 April (2nd Quarter/Spring) 2014
Azzedine Zerguine, Oualid Hammi, Abubaker Abdelhafiz, Mohamed Helaoui And Fadhel Ghannouchi. Behavioral modeling and predistortion of nonlinear power amplifiers based on adaptive filtering techniques, 11th Ieee International Multi-conference On Systems, Signals, And Devices (ssd 14), February 2014
Oualid Hammi, Souheil Bensmida And Kevin Morris. Behavioral modeling of class J amplifier driven by 100MHz LTE-advanced signal using dynamic nonlinearity reduction, Ieee Topical Meeting On Power Amplifiers For Wireless And Radio Applications (pawr 2014), January (1st Quarter/Winter) 2014
Abderezak Kedir, Andrew Kwan, Oualid Hammi And Fadhel Ghannouchi. Generic bandwidth scalable behavioral models for RF power amplifiers with memory effects, 2013 Ieee International Rf And Microwave Conference (rfm 2013), December 2013
Oualid Hammi. Low complexity behavioral model for RF power amplifiers' nonlinearity and efficiency prediction, 2013 Ieee International Rf And Microwave Conference (rfm 2013), December 2013
Oualid Hammi. Quantification of power amplifiers' static and dynamic distortions using frequency domain metrics, 2013 Ieee International Rf And Microwave Conference (rfm 2013), December 2013
Abbaker Abdelhafiz, Oualid Hammi, Azzedine Zerguine, Ali Al-awami And Fadhel Ghannouchi. A PSO based memory polynomial predistorter with embedded dimension estimation, Ieee Transactions On Broadcasting, 1 December 2013
Anum Ali, Oualid Hammi And Tariq Al-naffouri. Compressed sensing based joint-compensation of power amplifier's distortions in OFDMA cognitive radio systems, Ieee Journal On Emerging And Selected Topics In Circuits And Systems, 1 December 2013
Oualid Hammi, Andrew Kwan And Fadhel Ghannouchi. Bandwidth and power scalable digital predistorter for RF power amplifiers, Ieee Transactions On Broadcasting, 1 September 2013
Sameir Deif, Oualid Hammi, Mohammad Sharawi And Daniel Aloi. A Compact Size 12-Port Combiner/Splitter, Ieee Wireless And Microwave Technology Conference (wamicon 2013), April (2nd Quarter/Spring) 2013
Ahmad Numan, Oualid Hammi, Mohammad Sharawi And Daniel Aloi. A printed MIMO antenna system with CLLs for isolation enhancement, 7th European Conference On Antennas And Propagation (eucap 2013), April (2nd Quarter/Spring) 2013
Oualid Hammi, Mohammad Sharawi And Fadhel Ghannouchi. Generalized twin-nonlinear two-box digital predistorter for GaN based LTE Doherty power amplifiers with strong memory effects, Ieee International Wireless Symposium (iws 2013), April (2nd Quarter/Spring) 2013
Oualid Hammi, Sungchan Jung And Fadhel Ghannouchi. Design for linearizability of GaN based multi-carrier Doherty power amplifier through bias optimization, 19th Ieee International Conference On Electronics, Circuits, And Systems (icecs 2012), December 2012
Oualid Hammi, Abderezak Kedir And Fadhel Ghannouchi. Nonuniform memory polynomial behavioral model for wireless transmitters and power amplifiers, 2012 Ieee Asia-pacific Microwave Conference (apmc 2012), December 2012
Ramzi Darraji, Fadhel Ghannouchi And Oualid Hammi. Generic load-pull based design methodology for performance optimization of energy-efficient Doherty amplifiers, Iet Science, Measurement And Technology, 1 May 2012
Andrew Kwan, Fadhel Ghannouchi, Oualid Hammi, Mohamed Helaoui And Michael Smith. Look-up table-based digital predistorter implementation for field programmable gate arrays using long-term evolution signals with 60MHz bandwidths, Iet Science, Measurement And Technology, 1 May 2012
Oualid Hammi. Enhanced delay alignment method for behavioral modeling of power amplifiers exhibiting memory effects, 16th Ieee Mediterranean Electrotechnical Conference (melecon 2012), March 2012
Fadhel Ghannouchi, Farzaneh Taringou, Andrew Kwan, Oualid Hammi And Roland Malhame. Identification of true-static predistorter using a sine wave and accurate quantification of memory effects in broadband wireless transmitters, Iet Communications, 1 July (3rd Quarter/Summer) 2011
Ramzi Darraji, Fadhel Ghannouchi And Oualid Hammi. A dual-input digitally driven Doherty amplifier architecture for performance enhancement of Doherty transmitters, Ieee Transactions On Microwave Theory And Techniques, 1 May 2011
Mayada Younes, Oualid Hammi, Andrew Kwan And Fadhel Ghannouchi. An accurate complexity-reduced "PLUME" model for behavioral modeling and digital predistortion of RF power amplifiers, Ieee Transactions On Industrial Electronics, 1 April (2nd Quarter/Spring) 2011
Oualid Hammi. Orthogonal polynomial based Hammerstein behavioral model for power amplifiers with strong memory effects, 2010 Ieee Asia-pacific Microwave Conference (apmc 2010), December 2010
Sonia Saied-bouajina, Oualid Hammi, Meriem Jaidane-saidane And Fadhel Ghannouchi. Experimental approach for robust identification of RF power amplifier behavioral models using polynomial structures, Iet Microwaves Antennas And Propagation, 1 November 2010
Oualid Hammi, Andrew Kwan, Mohamed Helaoui And Fadhel Ghannouchi. Green power amplification systems for 3G+ wireless communication infrastructure, 2010 Ieee 72nd Vehicular Technology Conference (vtc 2010-fall), September 2010
Oualid Hammi, Mayada Younes And Fadhel Ghannouchi. Metrics and methods for benchmarking of RF transmitter behavioral models with application to the development of a novel hybrid memory polynomial model, Ieee Transactions On Broadcasting, 1 September 2010
Oualid Hammi, Mayada Younes, Andrew Kwan, Michael Smith And Fadhel Ghannouchi. Performance-driven dimension estimation of memory polynomial behavioral models for wireless transmitters and power amplifiers, Journal Of Progress In Electromagnetics Research, 1 August 2010
Farzaneh Taringou, Oualid Hammi, Balasubrahmanyan Srinivasan, Roland Malhame And Fadhel Ghannouchi. Behavior modelling of wideband RF transmitters using Hammerstein-Wiener models, Iet Circuits, Devices And Systems, 1 July (3rd Quarter/Summer) 2010
Noureddine Boulejfen, Afef Harguem, Oualid Hammi, Fadhel Ghannouchi And Ali Gharsallah. Analytical prediction of spectral regrowth and correlated and uncorrelated distortion in multicarrier wireless transmitters exhibiting memory effects, Iet Microwaves Antennas And Propagation, 1 June 2010
Fadhel Ghannouchi, Farzaneh Taringou And Oualid Hammi. A dual branch Hammerstein-Wiener architecture for behavior modeling of wideband RF transmitters, 2010 Ieee Mtt-s International Microwave Symposium (ims 2010), May 2010
Andrew Kwan, Oualid Hammi, Mohamed Helaoui And Fadhel Ghannouchi. High performance wideband digital predistortion platform for 3G+ applications with better than 55dBc over 40 MHz bandwidth, 2010 Ieee Mtt-s International Microwave Symposium (ims 2010), May 2010
Syed Bassam, Mojtaba Ebrahimi, Andrew Kwan, Mohamed Helaoui, Mohamed Aflaki, Oualid Hammi, Michel Fattouche And Fadhel Ghannouchi. A generic architecture for smart multi-standard software defined radio systems, Sdr09 Technical Conference And Product Exposition, December 2009
Oualid Hammi And Fadhel Ghannouchi. Comparative study of recent advances in power amplification devices and circuits for wireless communication infrastructure, 16th Ieee International Conference On Electronics, Circuits, And Systems (icecs 2009), December 2009
Fadhel Ghannouchi And Oualid Hammi. Behavioral modeling and predistortion, Ieee Microwave Magazine, 1 December 2009
Sung Chan Jung, Oualid Hammi And Fadhel Ghannouchi. Design optimization and DPD linearization of GaN based unsymmetrical Doherty power amplifiers for 3G multi-carrier applications, Ieee Transactions On Microwave Theory And Techniques, 1 September 2009
Oualid Hammi And Fadhel Ghannouchi. Twin nonlinear two-box models for power amplifiers and transmitters exhibiting memory effects with application to digital predistortion, Ieee Microwave And Wireless Components Letters, 1 August 2009
Mayada Younes, Oualid Hammi And Fadhel Ghannouchi. Algorithm for model dimension estimation of memory polynomial-based RF transmitters / power amplifiers behavioral models, International Journal Of Microwave And Optical Technology, 1 July (3rd Quarter/Summer) 2009
Oualid Hammi, Scott Carichner, Bill Vassilakis And Fadhel Ghannouchi. Effects of crest factor reduction on the predistortion performance for multi-carrier 3G RF power amplifiers, 2009 Ieee Mtt-s International Microwave Symposium (ims 2009), June 2009
Oualid Hammi And Fadhel Ghannouchi. Efficiency optimization of WCDMA driven two-way Doherty power amplifiers over wide power range, 2009 Ieee Canadian Conference On Electrical And Computer Engineering (ccece 2009), May 2009
Karun Rawat, Oualid Hammi And Fadhel Ghannouchi. Investigating effect of quadrature imperfection of vector multiplier in implementing RF/Digital predistortion, 2009 Ieee Wireless And Microwave Technology Conference (wamicon 2009), April (2nd Quarter/Spring) 2009
Oualid Hammi And Fadhel Ghannouchi. Power alignment of digital predistorters for power amplifiers linearity optimization, Ieee Transactions On Broadcasting, 1 March 2009
Oualid Hammi, Mayada Younes, Bill Vassilakis And Fadhel Ghannouchi. Digital predistorters sensitivity to delay alignment resolution, 2009 Ieee Radio And Wireless Symposium (rws 2009), January (1st Quarter/Winter) 2009
Oualid Hammi, Scott Carichner, Bill Vassilakis And Fadhel Ghannouchi. On the predistortability of high efficiency multi-carrier power amplifiers for wireless communication infrastructure, Ieee Topical Symposium On Power Amplifiers For Wireless Communications, January (1st Quarter/Winter) 2009
Oualid Hammi, Slim Boumaiza And Fadhel Ghannouchi. Study of the output load mismatch effects on the load modulation of Doherty power amplifiers, Ieee Radio Wireless Symposium (rws 2007), January (1st Quarter/Winter) 2009
Oualid Hammi, Scott Carichner, Bill Vassilakis And Fadhel Ghannouchi. Power amplifiers' model assessment and memory effects intensity quantification using memoryless post-compensation technique, Ieee Transactions On Microwave Theory And Techniques, 1 December 2008
Oualid Hammi, Scott Carichner, Bill Vassilakis And Fadhel Ghannouchi. Synergetic crest factor reduction and baseband digital predistortion for adaptive 3G Doherty power amplifier linearizer design, Ieee Transactions On Microwave Theory And Techniques, 1 November 2008
Jing Li, Oualid Hammi And Fadhel Ghannouchi. Implementation of dual-channel receiver suitable for 3G power amplifiers characterization in RF/digital predistortion systems, Ieee International Conference On Electronics, Circuits And Systems (icecs 2008), September 2008
Oualid Hammi, Scott Carichner, Bill Vassilakis And Fadhel Ghannouchi. Novel approach for static nonlinear behavior identification in RF power amplifiers exhibiting memory effects, 2008 Ieee Mtt-s International Microwave Symposium (ims 2008), June 2008
Oualid Hammi, Fadhel Ghannouchi And Bill Vassilakis. A compact envelope-memory polynomial for RF transmitters modeling with application to baseband and RF-digital predistortion, Ieee Microwave And Wireless Components Letters, 1 May 2008
Taijun Liu, Yan Ye, Slim Boumaiza, Mohamed Helaoui, Oualid Hammi And Fadhel Ghnnouchi. Accurate identification of static nonlinear properties of wideband RF power amplifiers, 6th International Conference On Microwave And Millimetre Wave Technology, April (2nd Quarter/Spring) 2008
Oualid Hammi, Fadhel Ghannouchi And Bill Vassilakis. On the sensitivity of RF transmitters' memory polynomial model identification to delay alignment resolution, Ieee Microwave And Wireless Components Letters, 1 April (2nd Quarter/Spring) 2008
Oualid Hammi, Fadhel Ghannouchi And Bill Vassilakis. 2-D vector quantized behavioral model for wireless transmitters' nonlinearity and memory effects modeling, 2008 Ieee Radio And Wireless Symposium (rws 2008), January (1st Quarter/Winter) 2008
Souheil Bensmida, Oualid Hammi And Fadhel Ghannouchi. High efficiency digitally linearized GaN based power amplifier for 3G applications, 2008 Ieee Radio And Wireless Symposium (rws 2008), January (1st Quarter/Winter) 2008
Slim Boumaiza, Mohamed Helaoui, Oualid Hammi, Taijun Liu And Fadhel Ghannouchi. Systematic and adaptive characterization approach for behavior modeling of dynamic nonlinear transmitters, Ieee Transactions On Instrumentation And Measurement, 1 December 2007
Tian Ying, Oualid Hammi, Slim Boumaiza And Fadhel Ghannouchi. Design and optimization of digital signal component separator of LINC transmitters using FPGA processors, 2007 Ieee International Conference On Signal Processing And Communications (icspc 2007), November 2007
Oualid Hammi, Slim Boumaiza, Bill Vassilakis And Fadhel Ghannouchi. On the effects of the average power of training sequences used to synthesize memory digital predistorters in WCDMA transmitters, 37th Ieee European Microwave Conference (eumc 2007), October (4th Quarter/Autumn) 2007
Oualid Hammi, Fadhel Ghannouchi, Slim Boumaiza And Bill Vassilakis. A data-based nested LUT model for RF power amplifiers exhibiting memory effects, Ieee Microwave And Wireless Components Letters, 1 October (4th Quarter/Autumn) 2007
Oualid Hammi, Slim Boumaiza, Bill Vassilakis And Fadhel Ghannouchi. Digital predistorter architecture with small signal gain control for highly nonlinear RF power amplifiers, 50th Ieee International Midwest Symposium On Circuits & Systems (mwscas 2007), August 2007
Oualid Hammi, Slim Boumaiza And Fadhel Ghannouchi. On the robustness of digital predistortion function synthesis and average power tracking for highly nonlinear power amplifiers, Ieee Transactions On Microwave Theory And Techniques, 1 June 2007
Nizar Messaoudi, Oualid Hammi, Slim Boumaiza And Fadhel Ghannouchi. A comparative study of power amplifier's sensitivity to mismatched load: single branch vs. Doherty architectures, Ieee Canadian Conference On Electrical And Computer Engineering (ccece 2007), April (2nd Quarter/Spring) 2007
Oualid Hammi, Slim Boumaiza And Fadhel Ghannouchi. Multi-branch polynomial model of RF power amplifiers with embedded average power dependency, Ieee Canadian Conference On Electrical And Computer Engineering (ccece 2007), April (2nd Quarter/Spring) 2007
Oualid Hammi, Slim Boumaiza And Fadhel Ghannouchi. On the robustness of the predistortion function synthesis for highly nonlinear RF power amplifiers linearization, Ieee European Microwave Conference (eumc 2006), September 2006
Oualid Hammi, Jerome Sirois, Slim Boumaiza And Fadhel Ghannouchi. Design and performance analysis of mismatched Doherty amplifiers using accurate load-pull based model, Ieee Transactions On Microwave Theory And Techniques, 1 August 2006
Oualid Hammi, Slim Boumaiza, Jangheon Kim, Sungchul Hong, Ildu Kim, Bumman Kim And Fadhel Ghannouchi. RF power amplifiers for emerging wireless communications: single branch vs. multi-branch architectures, Ieee Canadian Conference On Electrical And Computer Engineering (ccece 2006), May 2006
Oualid Hammi And Fadhel Ghannouchi. Temperature compensated digital predistorter for 3G power amplifiers, Ieee International Conference On Electronics, Circuits And Systems (icecs 2005), December 2005
Oualid Hammi, Slim Boumaiza, Meriem Jaidane And Fadhel Ghannouchi. Digital subband filtering predistorter architecture for wireless transmitters, Ieee Transactions On Microwave Theory And Techniques, 1 May 2005
Oualid Hammi, Sami Bousnina And Fadhel Ghannouchi. A linearized Doherty amplifier using complex baseband digital predistortion driven by CDMA signals, Ieee Radio And Wireless Conference (rawcon 2004), September 2004
Oualid Hammi, Slim Boumaiza, Meriem Jaidane-saidane And Fadhel Ghannouchi. Baseband digital predistortion using subband filtering technique, Ieee Mtt-s International Microwave Symposium (ims 2003), June 2003
Oualid Hammi, Slim Boumaiza, Meriem Jaidane-saidane And Fadhel Ghannouchi. Adaptive baseband digital predistorter suitable for wideband signals, 14th International Conference On Microelectronics (icm 2002), December 2002
Oualid Hammi, Meriem Jaidane-saidane, Slim Boumaiza And Fadhel Ghannouchi. Subband digital predistorter for 3G applications, 8th International Symposium Of Microwave & Optical Technology (ismot 2001), June 2001

Conference Presentations

A Low-Cost Portable and Agile Amateur Satellites Ground-Station, 2023 Ieee 9th International Conference On Smart Instrumentation, Measurement And Applications (icsima), 17 October 2023
Enabling Digital Predistortion for Today’s Power Amplifiers, Ieee 2021 European Microwave Conference, 3 April 2022
Developing a Cohesive Undergraduate Curriculum for YPinSpace, 2019 Young Professionals In Space (ypinspace), 6 November 2019
Automated Tracking for non-geostationary satellites, 2019 Young Professionals In Space (ypinspace), 5 November 2019
SDR based Receivers for Amateur Satellites Observation, 2019 Young Professionals In Space (ypinspace), 5 November 2019
RF Front-end Design for Satellite Applications, 2019 Young Professionals In Space (ypinspace), 4 November 2019

Grants and sponsorships

Grant, Dual Band Predistortion Systems, AUS / FRG
Grant, Design and Prototyping of Portable Ground Station for Amateur Satellites Observation and Tracking, American University of Sharjah, 1 June 2021 - 31 May 2023
Grant, CEN Innovation Program - “Fly High” – A CubeSat Lab/Club for CEN Students, College of Engineering
Grant, Autonomous Navigation Robot, American University of Sharjah, Office of Research, March 2021 - December 2022
Grant, Scalable behavioural models of RF power amplifier using relaxed sampling rates, American University of Sharjah, 31 May 2020 - 31 May 2022
Grant, RF front-end for S-band satellite applications, 1 May 2019 - 31 May 2021
Grant, Autonomous Guidance System for the Visually Impaired, Sandooq Al Watan, 26 January 2020 - 6 December 2020
Grant, Mm-Wave Vector Network Analyzer On Wafer System, CRF, 28 February 2020
Grant, Behavioral Modeling and Impairment Compensation of Wideband Power Amplifiers using Reduced Observation Bandwidth, 1 June 2017 - 31 May 2019
Grant, Digitally Assisted RF Analog Predistortion for Millimeter-Wave GaN Power Amplifiers, 1 June 2017 - 31 May 2019
Grant, RF transmitters for 5G applications, July 2018 - August 2018
Grant, Development of a rapid DPD prototyping system, College of Engineering, 1 September 2015 - 31 May 2016
Grant, Wideband DPD Systems, January 2016 - January 2016

Awards and Honors

Electrical Engineering Service Excellence Award, AUS / CEN / ELE Department, May 2024
3rd Place in CEN SDP Competition, 3rd place for best senior design project in the electrical engineering department for AY 21/22, May 2022
1st Place Award for Best Senior Design Project AY2020/2021, Co-advisor of best ELE senior design project for the academic year 2020-2021. Project title "Autonomous Guidance System for the Visually Impaired", 19 May 2021
College of Engineering Research Excellent Award, 30 April 2019

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